Igniter-rod for gasolene-engines.



No. 888,533. I I I PATENTED MAY 26, 1908.

' R. J. RBNNI'E.

IGN'ITER ROD FOR GA-SO-L'ENE ENGINESr APPLICATION FILED JULY 26.1907.

RJRMM.

ROBERT J. RE-NNIE, OF MOOERS FORKS, NEW YORK.

IGNITER-ROD FOR GASOLENE-ENGINES.

Specification of Letters Patent.

Patented May 26, 1908.

Application filed July 26, 1907. Serial No. 385,723.

To all whom it may concern.

Be it known that I, ROBERT J. RENNIE, citizen of the United States, residing at Mooers Forks, in the county of Clinton and State of New York, have invented certain new and useful Improvements in Igniter- Rods for Gasolene-Engines, of which the following is a specification.

This invention contemplates certain new and useful improvements in that type of in ternal combustion or explosion engines in which the charge is ignited by means of a wiping contact with an ignition finger, actuated by an eccentric on the engine. The igniters now in use consist of a piece of steel extending from the eccentric to the ignition finger on the explosion chamber, which wears away from repeated wiping contact with the said ignition finger and which must be taken out and filed on the end after it has become worn, in order to give it the proper shape. This manifestly makes it shorter, and after being filed a number of times it must be replaced by an entirely new rod.

My invention has for its object a simple and eflicient construction of igniter for gasolene engines, which will avoid the difficulty above noted and which will enable the ignition rod to remain as a permanent part of the engine, the only part that must be renewed being a small steel bar carried in a readily detachable and extensible manner at the outer end of the igniter rod, as will be hereinafter fully described and claimed.

For a full understanding of the invention and the merits thereof and also to acquire a knowledge of the details of construction and the means for eifecting the result, reference is to be had to the following description and accompanying drawings, in which:

Figure 1 is a side elevation of an internal combustion engine equipped with the improvements of my invention. Fig. 2 is a perspective veiw, on an enlarged scale, of the igniting mechanism Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

Referring to the drawings, the numeral 1 designates the igniter rod of an explosion en gine, said igniter rod being actuated in the usual way by an eccentric and being in the present instance provided at its outer end with a recess 2. An arm 3 is fitted in said recess and projects forwardly from the igniter rod 1, said arm being provided with slotted holes to receive the cap bolts or screws 4 securing'it to the rod. The outer end of the arm 3 is preferably thickened, as indicated at 5, and is provided with a mortise 6, extending therethrough preferably at a slight inclination, as clearly illustrated in the drawings.

A bar 7 of steel or the like is fitted in said mortise and is provided with beveled ends 8, either one of which is designed for wiping contact with the igniter finger 9. The bar 7 is held rigidly at different extended positions in the mortise 6 of the arm 3, the means in the present instance employed for this purpose being a set screw 10 working in the outer end of the arm and adapted to impinge against the bar.

From the foregoing description in connection with the accompanying drawing, it will be seen that I have provided a very simple igniter for explosive engines, in which the removable bar 7 is beveled at both ends and may be removed when worn at one end and reversed to present a fresh or unworn end to the igniter finger 9. It will also be seen that even after both ends have become worn, the bar 7 need not be thrown away, but that it may be filed at either or both ends and held in the arms 3 by means of the set screw 10 at the proper extended position to contact with the finger 9. Hence the bar may be used for a long time without the necessity of replacing it by another, and even after this necessity arises, the change may be made at a very slight expense, as it is only necessary to provide a new bar and unnecessary to replace the entire igniter rod.

Having thus described the invention, what is claimed as new is:

1. In an explosive engine, an igniter rod, an igniter finger, a contact bar carried by said rod in an extensible relation thereto, and means for holding said bar rigidly to the rod at different extended positions.

2. In an explosive engine, an igniter rod, an igniter finger, an arm secured to the outer end of said igniter rod and provided with a mortise extending therethrough, and a contact bar removably held in said mortise.

8. In an explosive engine, an igniter rod and igniter finger, an arm secured on the a contact bar held in said mortise and proouter end of said igniter rod and provided vided with beveled opposite ends. 10 with a mortise extending therethrough, and In testimony whereof I affix my signature a contact bar held in said mortise. in presence of two Witnesses.

4. In an explosive engine, an igniter rod ROBERT J. RENNIE. [L. s.] and igniter finger, an arm secured on the Witnesses: outer end of said igniter rod and provided A. GOODRICH,

with a mortise extending therethrough, and GEO. S. BATOHELDER. 

